Introduction; Interfacing The Meter With A Personal Computer - Urrea UD85 Manual De Usuario Y Garantía

E N G L I S H
reading.
When measuring
temperatures, adjust
between the thermocouple and the surface
until you get the lowest temperature
reading.
When measuring
temperatures, take the reading when the
display is most stable.
Follow these steps to measure temperature:
1. Set the rotary switch to the "TEMP"
position.
2. Plug the thermocouple adapter into the
COM input terminal and the TEMP input
terminal observing the proper polarity.
3. Plug a K-type thermocouple probe
connector into the thermocouple adapter
observing the proper polarity.
4. Read the temperature on the LCD.
5. RS-232C INTERFACE

5.1 Introduction

RS-232C is an EIA-defined standard for a
serial communications interface commonly
used between computers, terminals, and
modems.
This Meter is capable of RS-232C interface
with a WINDOWS computer by using its bi-
directional RS-232C serial interface cable
and its WINDOWS software supplied as
optional accessories along with this Meter.
5.2 Interfacing the meter with a
Personal Computer
Follow these steps to interface the Meter
with a WINDOWS computer:
1.
Connect the RS-232C cable to the
computer's 25-pin serial port. Plug the D9
44
below-ambient
the connection
near - ambient
male connector into the RS-232C terminal
on the back of the Meter.
The RS-232C driver is powered by ±12V
supplied from the interfaced computer
through "DTR" and "RTS" pins of the D25
female connector.
The RS-232C connector's pin configuration
is as follows:
<DMM>
2
3
4
5
7
2.
Turn the Meter and Press the RS-232C
(REL) button for 2 seconds to activate the
RS-232C communication. The symbol 'RS-
232C' will appear on the LCD.
3.
Load the DOS software diskette, which
is optionally supplied for the Meter, on the
computer. This software requires a VGA or
upper - class monitor.
4.
Copy the files from the software diskette
to the computer's hard disc to make a back-
up copy.
<COMPUTER>
3 RXD
2 TXD
20 DTR
7 GND
4 RTS